Cookies are files that a website's server stores on your computer to better facilitate the exchange of information between your browser and the site. Most cookies are simple text files that are relatively harmless. But some, such as cookies from the digital advertising company Rubicon Project, can collect information about the user and relay that information to third-party vendors. Your web browser has the necessary tools to remove any cookies saved to your computer.
Launch an Internet Explorer browsing window. Click on "Tools" and select the "Internet Options" listing in the drop-down to open the Internet Options window.
Click on the "General" tab, then click on the "Delete Cookies" button in the interface.
Click "OK" in the "Delete Cookies" verification window that opens to remove any cookies, including Rubicon Project cookies, from your computer.
Open a Firefox browser window. Click on the "Tools" button in the menu bar, then click on the "Options" listing. The Options pop-up window will open.
Click on the "Privacy" panel in the Options window. Click on the drop-down menu and select "Use Custom Settings For History." Click on the "Show Cookies" button to open the "Cookies" window.
Type "Rubicon Project" into the search field to locate the cookies. Select the cookies that are displayed and click "Remove Cookies." Alternately, click "Remove All Cookies" to erase all the cookies on the computer, including cookies from the Rubicon Project.